Recently, Hebei Xinda Steel Group Co., Ltd. steelmaking slab continuous casting workshop came to a "red man", attracting everyone to watch, it is intelligent slag system slag robot. Its arrival makes the main watering hands happy, because they no longer have to stare at the liquid surface of the crystallizer slag, intelligent slag robot all do it for them.

The vacuum feeder of the transfer bin transports the slag bin protection slag through the industrial hose to the transfer bin bin barrel. The feeding port of the screw conveyor is connected with the feeding port of the screw feeding device installed on the sixth axis of the robot by a hose to realize continuous feeding. The screw slagging device pushes the protection slag evenly into the mold along the robot slagging track to complete the slagging. In this way, the main pouring hand can be far away from the "big furnace" crystallizer, let alone frequent slag adding operation, and more energy can be put into other production links.

▲ The main hand to observe the slag situation

Conventional slag

In the process of slab continuous casting, the protective slag is added to the surface of the molten steel of the mold by manual slagging. It is necessary to stand beside the mold at all times and push the slag into the mold by using the slagging tool according to the principle of "small amount and many times". Due to the large section width and the amount of protection slag added, special personnel are required to be responsible for the slag operation, and the intensity and frequency of pushing slag can not be fixed. This not only increases the labor cost, but also the randomness of manual slagging, the thickness of liquid slag layer is unstable, and affects the quality of slab. In addition, due to the influence of slag adding operation environment, there is a waste of slag, which will also lead to an increase in slag consumption.

Intelligent slag

The intelligent slagging system can be set up in three modes: manual, semi-automatic and fully automatic. It is composed of robot system, robot mobile platform, slagging silo and mounting frame, transfer silo, gas control box, screw conveyor, screw slagging device, electrical control system and safety system to realize automatic slagging of the system.

The intelligent slagging system puts the protective slag into the slagging bin, and the transfer bin pumps the material from the slagging bin to complete the material preparation; One key start system, communicate with the casting machine system, obtain the drawing speed, section parameters, the system automatically calculates the amount of slag; The robot and the spiral slagging device move to the slagging station, the transfer bin valve is opened, the protective slag falls into the inlet of the feeding screw conveyor through the slag pipe, the protective slag is discharged from the outlet of the feeding screw conveyor, enters the inlet of the spiral slagging device through the industrial hose, and then pushes the spiral slagging device into the mold through the spiral blade; When the system is stopped, you can choose whether to perform cleaning or not. Select the execution of slag cleaning, the robot moves to the slag cleaning position, and returns to the initial position after cleaning the slag. If you choose not to perform the slag cleaning, the robot goes directly to the initial position. In case of emergency, the "Emergency return" button can be directly triggered to return the robot to the initial position.

In terms of safety, the robot moves frequently in the process of walking and slag adding, and the safety of on-site operators and equipment needs to be ensured. The system is equipped with one-click back to the original position, robot collision prevention, program safety, emergency stop, safety warning area, field control box and UPS systems to ensure the safety of the slag grabbing system.

Compared with manual slagging, intelligent robots can not only reduce the labor intensity of workers and improve the casting efficiency, but also rely on digital programs to achieve "a small amount of adding, multiple adding and uniform adding" through the robot arm to ensure the uniformity of the addition of protective slag and improve the quality of casting billets.

In recent years, Hebei Xinda Group has taken the overall construction of informatization as the layout, adhered to the road of intelligent manufacturing, and promoted the deep integration of informatization and industrialization with intelligent manufacturing. The construction of the "8+2+1" intelligent manufacturing architecture with eight business systems and process big data pools such as MES production management and execution system, two business big data pools and one intelligent manufacturing demonstration production line as the main body. It has put into operation 14 intelligent robotic arms such as automatic temperature measurement and sampling system of hot metal ladle, intelligent platform system of continuous casting, unmanned platform system of large ladle, robot billet spray marking system, automatic slagging of manipulator, more than 10 sets of intelligent automation systems such as surface quality inspection system of shaped steel and steel leakage prediction system of slab continuous casting machine. Production process to achieve computer intelligence and early warning of the whole process control. Intelligent manufacturing not only reduces the labor intensity of workers, but also improves the precision of production process control.

Production efficiency is improved, the rate of defective products is reduced, operating costs are reduced, intelligent manufacturing has greatly changed enterprises, and the upgrading of traditional industries has pressed the "fast forward key". In the future, Hebei Xinda Group will rely on the industrial Internet, big data and artificial intelligence, through the integration of the two, transform the production management model and business model, optimize the whole process resource allocation, and achieve logistics standardization, manufacturing processes, and organization flattening. Increase R&D investment in promoting the construction of smart factories, accelerate the pace of implementation, and inject scientific and technological power for the high-quality development of enterprises!